Slag-free cutting slag receiving rod of laser pipe cutting machine and slag removing device of laser pipe cutting machine

Abstract

The utility model relates to a slag-free cutting slag receiving rod of a laser pipe cutting machine and a slag removing device of the laser pipe cutting machine. The slag-free cutting slag receiving rod of the laser pipe cutting machine comprises a slag receiving head and a rod body. The slag receiving head is connected with the first end of the rod body, a slag receiving groove is formed in the slag receiving head, and a groove opening of the slag receiving groove faces upwards. A first channel and a second channel are arranged on the rod body in the axial direction, the first ends of the first channel and the second channel are communicated with the slag receiving groove, and the second end of the second channel is communicated with a positive pressure water source. The whole slag receiving rod is of a rotary structure, the angle position relation between the slag receiving groove and the rod body does not need to be defined during manufacturing, and the manufacturing and mounting difficulty is lowered. The first channel and the second channel achieve continuous circulation of water in the slag receiving groove, high-temperature waste slag is mixed with the water in the slag receiving groove to be rapidly cooled, the high-temperature waste slag is pulled away from the slag receiving groove under pushing of water flow, the waste slag is prevented from splashing or remaining in the slag receiving groove in the transportation process, the slag receiving effect is effectively improved, meanwhile, the slag receiving head is prevented from being damaged due to long-time contact with high temperature, and the service life of the slag receiving head is prolonged. And the service life of the slag receiving head is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of laser tube cutting machines, in particular to a slag-free cutting slag connecting rod of a laser tube cutting machine and a slag removing device of a laser tube cutting machine. Background Art

[0002] During the laser cutting process of small-diameter thin-walled pipes, due to the small diameter, the high-temperature cutting slag after cutting will burn the inner wall of the opposite pipe under the action of high-pressure gas; after cutting, the high-temperature cutting slag is sprayed onto the inner wall of the pipe, and some of the cutting slag adheres to the inner wall of the pipe and cannot be cleaned.

[0003] The prior art uses an extended slag-connecting anti-burning exhaust rod, and uses the negative pressure of a fan or compressed air to extract the cutting slag. This method has limited effect, and the service life of the slag connecting rod head is short due to long-term exposure to high temperature. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a slag-free cutting slag rod for a laser tube cutting machine and a slag removal device for a laser tube cutting machine, which solves the technical problems of poor slag extraction effect from the rod body and easy high-temperature damage to the rod head.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the slag-free cutting slag connecting rod of the laser tube cutting machine of the utility model comprises a slag connecting head and a rod body;

[0008] The slag receiving head is connected to the first end of the rod body, and a slag receiving groove is formed on the slag receiving head, with the notch of the slag receiving groove facing upward;

[0009] The rod body is axially provided with a first channel and a second channel, the first ends of the first channel and the second channel are both connected to the slag receiving groove, and the second end of the second channel is connected to a positive pressure water source.

[0010] Optionally, the first channel is colinear with the central axis of the rod body, and at least one second channel is arranged around the first channel.

[0011] Optionally, the first end of the first channel is communicated with the first end of the slag receiving groove, the first end of the second channel is communicated with the second end of the slag receiving groove, and the first end of the slag receiving groove is close to the rod body.

[0012] Optionally, the second end of the second channel is also connected to a positive pressure gas source.

[0013] Optionally, the rod body comprises an inner tube and an outer tube which are nested;

[0014] The first channel is arranged on the inner tube, and the second channel is formed between the outer wall of the inner tube and the inner wall of the outer tube.

[0015] Optionally, the slag receiving head comprises a head outer sleeve and a head inner sleeve which are nested, the head inner sleeve is a hollow structure, and the head inner sleeve is sealed and connected to the head outer sleeve;

[0016] The slag receiving groove passes through the head outer sleeve and the head inner sleeve in sequence and then communicates with the interior of the head inner sleeve. The first ends of the first channel and the second channel are both communicated with the interior of the head inner sleeve.

[0017] Optionally, the head inner sleeve is detachably connected to the first end of the inner tube, and the head outer sleeve is detachably connected to the first end of the outer tube.

[0018] Furthermore, the utility model also provides a slag removal device for a laser tube cutting machine, which comprises a mounting frame, a circulation mechanism and a slag-free cutting slag-receiving rod for a laser tube cutting machine as claimed in claim 1;

[0019] The second end of the rod body is arranged on the mounting frame through a connecting seat, and the outlet of the circulation mechanism is communicated with the second end of the second channel.

[0020] Optionally, the connecting seat includes a fixing seat, a first connecting seat and a second connecting seat;

[0021] The fixing seat is arranged on the laser pipe cutting machine, the first end of the first connecting seat is connected to the fixing seat through a clamp, and the second end of the first connecting seat is connected to the second connecting seat;

[0022] The outer tube is connected to the second connection seat, and the inner tube is connected to the first connection seat after passing through the second connection seat.

[0023] Optionally, a plurality of first through holes are formed on the first connecting seat, an annular groove is formed on the fixing seat, a gap is provided between the first connecting seat and the second connecting seat, the second channel, the gap, the first through hole and the annular groove are connected in sequence, and the outlet of the circulation mechanism is connected to the annular groove;

[0024] The first connecting seat is provided with a second through hole, the inner tube is sleeved in the second through hole, the fixing seat is further provided with a third through hole, and the first channel, the second through hole and the third through hole are connected in sequence.

[0025] Optionally, the outlet of the circulation mechanism is unidirectionally connected to the annular groove.

[0026] Optionally, the laser tube cutting machine slag removal device further includes an air supply mechanism, and the air supply mechanism is unidirectionally connected to the annular groove.

[0027] (III) Beneficial effects

[0028] The slag receiving rod is a rotary structure as a whole. It is not necessary to define the angle position relationship between the slag receiving groove and the rod body during manufacturing, which reduces the difficulty of manufacturing and installation. The first channel and the second channel realize the continuous circulation of water in the slag receiving groove, so that the high-temperature waste slag generated during the laser cutting process is mixed with the water in the slag receiving groove and quickly cooled down, and is pulled out of the slag receiving groove under the impetus of the water flow, so as to avoid the waste slag splashing or remaining in the slag receiving groove during transportation, effectively improving the slag receiving effect, and at the same time, preventing the slag receiving head from being damaged due to long-term exposure to high temperature, thereby improving the service life of the slag receiving head. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a slag-free cutting slag connecting rod of a laser tube cutting machine of the utility model;

[0030] Figure 2 It is a partial cross-sectional view of the slag-free cutting slag connecting rod of the laser tube cutting machine of the utility model.

[0031] [Description of Reference Numerals]

[0032] 101: slag receiving head; 102: slag receiving groove; 103: rod body;

[0033] 1: water inlet; 2: one-way valve; 3: air inlet; 4: sealing ring; 5: air outlet; 6: fixing seat; 7: clamp; 8: first connecting seat; 9: second connecting seat; 10: outer tube; 11: inner tube. DETAILED DESCRIPTION

[0034] In order to better explain the utility model and facilitate understanding, the utility model is described in detail below with reference to the accompanying drawings and through specific implementation methods. Figure 1 The orientation is used as a reference.

[0035] Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0036] like Figure 1 and Figure 2As shown, the utility model provides a slag-free cutting slag rod of a laser tube cutting machine and a slag removal device of a laser tube cutting machine, which are used to extend into the pipe to receive the high-temperature cutting slag after cutting, and use continuously flowing water to extract the cooled slag. Among them, the slag-free cutting slag rod of the laser tube cutting machine includes a slag-free cutting slag rod 101 and a rod body 103. The slag-free cutting slag rod 101 is connected to the first end of the rod body 103, and can be detachably connected to facilitate the disassembly and assembly of the slag-free cutting slag rod 101. A slag-free cutting slag rod 102 is provided on the slag-free cutting slag rod 101, and the notch of the slag-free cutting slag rod 102 is upward and toward the cutting point. The slag-free cutting slag rod is a rotary structure as a whole. It is not necessary to define the angular position relationship between the slag-free cutting slag rod 102 and the rod body 103 during manufacturing, which reduces the difficulty of manufacturing and installation. A first channel and a second channel are provided on the rod body 103 along the axial direction of the rod body 103, and the first ends of the first channel and the second channel are both connected to the slag-free cutting slag rod 102. The second end of the second channel is connected to a positive pressure water source, and the second channel is a water inlet channel, through which water is transported to the slag receiving groove 102. The first channel is a water return channel, and the slag-water mixture in the slag receiving groove 102 is transported to the outside of the rod body 103 through the first channel. The slag receiving rod realizes the continuous circulation of water in the slag receiving groove 102 through the first channel and the second channel, so that the high-temperature waste slag generated during the laser cutting process is mixed with the water in the slag receiving groove 102 and quickly cooled, and is pulled out of the slag receiving groove 102 under the impetus of the water flow, so as to avoid splashing or residual waste slag in the slag receiving groove 102 during transportation, effectively improving the slag receiving effect, and at the same time, preventing the slag receiving head 101 from being damaged due to long-term contact with high temperature, thereby improving the service life of the slag receiving head 101.

[0037] In the first embodiment, the first channel is colinear with the central axis of the rod body 103, so that the first channel can be smoothly connected with one end of the slag receiving groove 102 to avoid a step structure at the connection between the slag receiving groove 102 and the first channel, thereby improving the efficiency of slag water transportation. At least one second channel is arranged around the first channel. When multiple second channels are arranged, in a preferred embodiment, the multiple second channels can be connected to each other, so that the second channels form an annular channel, thereby improving the water intake efficiency.

[0038] The first end of the first channel is connected to the first end of the slag receiving trough 102, and the first end of the second channel is connected to the second end of the slag receiving trough 102. The first end of the slag receiving trough 102 is close to the rod body 103. Water enters the slag receiving trough 102 from the second end of the slag receiving trough 102 and is then drawn out from the first end of the slag receiving trough 102, thereby achieving one-way continuous flow of water in the slag receiving trough 102 and improving the effect of waste slag transportation. Furthermore, the second end of the second channel is also connected to a positive pressure gas source. In the case of waterway blockage, positive pressure gas is introduced through the second channel to dredge the slag receiving trough 102, the first channel, and the circulation pipeline connected to the first channel; or water and gas are simultaneously introduced into the slag receiving trough 102 to accelerate the flow efficiency of water and prevent blockage.

[0039] In the second embodiment, the rod body 103 includes an inner tube 11 and an outer tube 10, and the hollow part of the inner tube 11 is directly used as the first channel. The inner tube 11 and the outer tube 10 are nested, and the gap between the outer wall of the inner tube 11 and the inner wall of the outer tube 10 is directly used as the second channel, which effectively reduces the processing difficulty of the rod body 103.

[0040] Furthermore, the slag receiving head 101 includes a head outer sleeve and a head inner sleeve which are nested, the head inner sleeve is a hollow structure, the head inner sleeve is a hollow tubular structure with one end closed, and the head inner sleeve is sealed and connected to the head outer sleeve. The slag receiving groove 102 passes through the head outer sleeve and the head inner sleeve in sequence and then communicates with the interior of the head inner sleeve. The first ends of the first channel and the second channel are both connected with the interior of the head inner sleeve. The inner tube 11 with the same inner diameter can be selected according to the inner diameter of the slag receiving groove 102 on the slag receiving head 101 to ensure that the first channel and one end of the slag receiving groove 102 are smoothly docked to avoid the appearance of a step structure at the connection between the slag receiving groove 102 and the first channel, thereby improving the efficiency of slag water transportation. In a preferred embodiment, the head outer sleeve is an inner hollow structure, and the head inner sleeve is inlaid in the interior through a tight fit. Two planes are arranged on the outer circle of the head inner sleeve, and these two planes ensure that a certain cavity is left after the head inner sleeve and the head outer sleeve are tightly matched, and are connected with the second channel between the inner tube 11 and the outer tube 10.

[0041] like Figure 2 As shown, the head inner sleeve is detachably connected to the first end of the inner tube 11, and the head outer sleeve is detachably connected to the first end of the outer tube 10. Preferably, the first end of the head inner sleeve is inserted into the inner tube 11 by a tight fit. The first end of the outer tube 10 is provided with a pipe thread inner thread, which is matched and connected with the pipe thread outer thread of the head outer sleeve, so as to facilitate the disassembly and assembly of the slag receiving head 101.

[0042] Furthermore, the utility model also provides a slag removal device for a laser tube cutting machine, which includes a mounting frame, a circulation mechanism, and a slag-free cutting and slag-receiving rod for a laser tube cutting machine, and the circulation mechanism is preferably a circulation pump. The second end of the rod body 103 is detachably arranged on the mounting frame through a connecting seat, and the outlet of the circulation mechanism is connected to the second end of the second channel. The first channel serves as a return water channel, and its second end can be connected to a filtering mechanism, and promotes water circulation through the effect of negative pressure adsorption.

[0043] like Figure 1 and Figure 2As shown, the connection seat includes a fixed seat 6, a first connection seat 8 and a second connection seat 9. The fixed seat 6 is arranged on the laser tube cutting machine. The first end of the first connection seat 8 is connected to the first end of the fixed seat 6 through a clamp 7, and the second end of the first connection seat 8 is connected to the second connection seat 9. The outer tube 10 is connected to the second connection seat 9, and the inner tube 11 is connected to the first connection seat 8 after passing through the second connection seat 9. The first connection seat 8 is provided with a plurality of first through holes, preferably 4, and the fixed seat 6 is provided with an annular groove. A gap is provided between the first connection seat 8 and the second connection seat 9. The second channel, the gap, the first through hole and the annular groove are connected in sequence. The outlet of the circulation mechanism is unidirectionally connected with the annular groove, and water can only flow from the outlet of the circulation mechanism to the annular groove. The first connection seat 8 is provided with a second through hole, and the inner tube 11 is sleeved in the second through hole. The fixed seat 6 is provided with a third through hole, and the first channel, the second through hole and the third through hole are connected in sequence to form a return water channel.

[0044] In addition, the laser tube cutting machine slag removal device also includes an air supply mechanism, which is unidirectionally connected to the annular groove. When the rod body is blocked, the circulation mechanism is closed, and high-pressure gas is introduced into and out of the second channel through the air supply mechanism to clear the return water channel.

[0045] Specifically, the second end of the fixed seat 6 is provided with a water inlet 1, an air inlet 3, and an air exhaust port 5. The water inlet 1 and the air inlet 3 are respectively provided with a one-way valve 2. The water inlet 1, the air inlet 3, and the air exhaust port 5 lead to the first end of the fixed seat 6. The end surface of the second end of the fixed seat 6 is provided with an annular groove, which connects the air inlet 3 and the water inlet 1. The inner and outer sides of the annular groove are provided with grooves for installing a sealing ring 4. The sealing ring 4 close to the center of the circle separates the air exhaust port 5 from the water inlet 1 and the air inlet 3 and plays a sealing role. The sealing ring 4 far from the center of the circle plays an outer sealing role to prevent water and gas leakage. The outer circle of the fixed seat 6 is provided with a docking sub-mouth and a tapered outer edge. The outer circle of the first connecting seat 8 is provided with a docking female mouth and a tapered outer edge. The docking female mouth cooperates with the docking sub-mouth to achieve positioning. The tapered outer edge is connected and fixed to the fixed seat 6 by connecting with a clamp 7. The end surface of the first end of the first connecting seat 8 is processed flat to facilitate sealing with the sealing ring 4. A second through hole is opened in the center of the first connecting seat 8, and is connected to the exhaust port 5 through the third through hole of the fixing seat 6, and the first through hole is connected to the water inlet 1 and the air inlet 3. The second end of the second through hole of the first connecting seat 8 is provided with an inner pipe thread, which is matched and connected with the outer pipe thread of the inner tube 11. The outer cylindrical surface of the first connecting seat 8 is also provided with an outer pipe thread, which is matched and connected with the inner pipe thread of the second connecting seat 9. The center of the second end face of the second connecting seat 9 is provided with an inner pipe thread and is matched and connected with the outer pipe thread of the outer tube 10. The first end face is also provided with an inner pipe thread and is matched and connected with the outer pipe thread of the second end of the first connecting seat 8. After the connection, there is a certain cavity between the first connecting seat 8 and the second connecting seat 9, and the cavity between the inner tube 11 and the outer tube 10 is connected.

[0046] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0049] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0050] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A laser tube cutting machine for cutting slag rods without slag, characterized in that: The slag-free cutting slag connecting rod of the laser tube cutting machine comprises a slag connecting head (101) and a rod body (103); The slag receiving head (101) is connected to the first end of the rod body (103), and a slag receiving groove (102) is provided on the slag receiving head (101), and the notch of the slag receiving groove (102) faces upward; The rod body (103) is provided with a first channel and a second channel along the axial direction; the first ends of the first channel and the second channel are both connected to the slag receiving groove (102); and the second end of the second channel is connected to a positive pressure water source.

2. The slag-free cutting slag rod of the laser tube cutting machine according to claim 1, characterized in that: The first channel is colinear with the central axis of the rod body (103), and at least one second channel is arranged around the first channel.

3. The slag-free cutting slag rod of the laser tube cutting machine according to claim 1, characterized in that: The first end of the first channel is in communication with the first end of the slag receiving groove (102), the first end of the second channel is in communication with the second end of the slag receiving groove (102), and the first end of the slag receiving groove (102) is close to the rod body (103).

4. The slag-free cutting slag rod of the laser tube cutting machine according to claim 1, characterized in that: The second end of the second channel is also connected to a positive pressure gas source.

5. The slag-free cutting slag rod of the laser tube cutting machine according to claim 1, characterized in that: The rod body (103) comprises an inner tube (11) and an outer tube (10) which are nested; The first channel is arranged on the inner tube (11), and the second channel is formed between the outer wall of the inner tube (11) and the inner wall of the outer tube (10).

6. The slag-free cutting slag rod of the laser tube cutting machine according to claim 5, characterized in that: The slag receiving head (101) comprises a head outer sleeve and a head inner sleeve which are nested, the head inner sleeve is a hollow structure, and the head inner sleeve is sealedly connected to the head outer sleeve; The slag receiving groove (102) passes through the head outer sleeve and the head inner sleeve in sequence and then communicates with the interior of the head inner sleeve. The first ends of the first channel and the second channel are both communicated with the interior of the head inner sleeve.

7. The slag-free cutting slag rod of the laser tube cutting machine according to claim 6, characterized in that: The head inner sleeve is detachably connected to the first end of the inner tube (11), and the head outer sleeve is detachably connected to the first end of the outer tube (10).

8. A slag removal device for a laser tube cutting machine, characterized in that: The slag removal device of the laser tube cutting machine comprises a mounting frame, a circulation mechanism and a slag-free cutting slag-receiving rod of the laser tube cutting machine as claimed in claim 5; The second end of the rod body (103) is arranged on the mounting frame via a connecting seat, and the outlet of the circulation mechanism is connected to the second end of the second channel.

9. The slag removal device for a laser tube cutting machine according to claim 8, characterized in that: The connecting seat comprises a fixing seat (6), a first connecting seat (8) and a second connecting seat (9); The fixing seat (6) is arranged on the laser tube cutting machine, the first end of the first connecting seat (8) is connected to the fixing seat (6) via a clamp (7), and the second end of the first connecting seat (8) is connected to the second connecting seat (9); The outer tube (10) is connected to the second connecting seat (9), and the inner tube (11) is connected to the first connecting seat (8) after passing through the second connecting seat (9).

10. The slag removal device for a laser tube cutting machine according to claim 9, characterized in that: The first connecting seat (8) is provided with a plurality of first through holes, the fixing seat (6) is provided with an annular groove, a gap is provided between the first connecting seat (8) and the second connecting seat (9), the second channel, the gap, the first through hole and the annular groove are connected in sequence, and the outlet of the circulation mechanism is connected with the annular groove; The first connecting seat (8) is provided with a second through hole, the inner tube (11) is sleeved in the second through hole, the fixing seat (6) is also provided with a third through hole, and the first channel, the second through hole and the third through hole are connected in sequence.

11. The slag removal device for a laser tube cutting machine according to claim 10, characterized in that: The outlet of the circulation mechanism is in one-way communication with the annular groove.

12. The slag removal device for a laser tube cutting machine according to claim 10, characterized in that: The laser tube cutting machine slag removal device further comprises an air supply mechanism, and the air supply mechanism is in one-way communication with the annular groove.

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